将Spring MappingElasticsearchConverter配置为将_id视为字符串

spring.data.elasticsearch.repositories.type=elasticsearch
spring.data.elasticsearch.repositories.enabled=true
spring.data.elasticsearch.client.reactive.endpoints=localhost:9200

@Configuration
public class ElasticsearchConfig {

    @Bean
    public MappingElasticsearchConverter mappingElasticsearchConverter(SimpleElasticsearchMappingContext mappingContext) {
        MappingElasticsearchConverter converter = new MappingElasticsearchConverter(mappingContext);
        converter.setConversions(elasticsearchCustomConversions());
        converter.setElasticsearchMappingContext(mappingContext);
        converter.setTypeMapper(new DefaultElasticsearchTypeMapper(mappingContext));
        
        // 将_id字段映射为字符串
        converter.setBeanClassLoader(getClass().getClassLoader());
        converter.setCustomConversions(elasticsearchCustomConversions());
        converter.setMapKeyDotReplacement("_");
        converter.afterPropertiesSet();
        
        return converter;
    }

    @Bean
    public ElasticsearchCustomConversions elasticsearchCustomConversions() {
        return new ElasticsearchCustomConversions(Collections.emptyList());
    }

    @Bean
    public ElasticsearchOperations elasticsearchTemplate(Client client, MappingElasticsearchConverter mappingElasticsearchConverter) {
        return new ElasticsearchTemplate(client, mappingElasticsearchConverter);
    }
}